Industries / Cement & Concrete
Aragonite for Cement & Concrete.
Natural oolitic aragonite for cement, concrete and specialty construction mix designs.
Supplied as a custom classification to a written specification. There is no separately stocked construction grade; the inquiry sets the distribution.
What carbonate does in modern cement.
Ground calcium carbonate is an established constituent of cementitious systems. It can contribute through particle packing, nucleation and carboaluminate reactions.
Applicable standards and the complete mix design determine permitted content and performance requirements.
- Portland-limestone cement. Applicable cement standards define carbonate content, chemistry and performance requirements for each product class and market.
- The filler effect. Finely ground carbonate can provide nucleation surface and affect packing. The complete binder, particle distribution and curing conditions determine the result.
- Carboaluminate reaction. Beyond the physical filler effect, carbonate participates in a minor chemical (carboaluminate) reaction within the hydrating cement system.
Why aragonite
A distinct polymorph engineered within the mix.
Crystal form, chemistry, particle distribution and surface area influence fresh and hardened behavior across cementitious formulations.
Fresh-state behavior
Measure water demand, flow or slump, rheology, air, setting and admixture compatibility against the incumbent material.
Hardened performance
Test strength, dimensional stability and durability using the proposed dosage, binder system, aggregate, curing and exposure conditions.
Mix design connects carbonate dosage, binder chemistry, admixtures, curing and performance targets.
What matters to a construction buyer
What is published, and what a trial has to establish.
No cement-specific test data exists for this material. The mineral data below is published; the mix trial is the buyer’s.
What is published
Composition 96.17% CaCO3 (representative analysis, ASTM C 25) and the physical properties on TDS-OA-001 — specific gravity 2.93, Mohs 3.5–4, moisture as received 5–10%.
No cement-specific test data is published: no Blaine fineness, water demand, setting time, strength or durability result exists for this material, and none should be inferred from the mineral data.
What a mix trial needs
- The binder system and cement class
- The target dosage and replacement basis
- The incumbent carbonate or filler it is judged against
- The particle distribution required (which sets the custom classification)
- Curing and exposure conditions
- The acceptance criteria
AragoCor supplies the classification, TDS-OA-001 and the safety data sheet; the trial and its results are the buyer’s.
Delivered cost per performance
Delivered price, packaging, dosage and mix performance determine value at project volume. Quotes are based on grade, volume and destination.
Specialty carbonate for modern concrete.
Particle engineering. Aragonite supports mix designs where rheology, particle packing and carbonate chemistry matter.
Complete-system performance. Binder chemistry, dosage, admixtures, aggregate and curing shape fresh and hardened properties.
Discuss a cement or concrete mix trial.
Tell us the binder system, dosage, particle distribution and volume. AragoCor confirms the classification and supplies the documents that exist; the trial establishes performance.